<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model="uname" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model="age" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="gender">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="add">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item, index) in arr" :key="index">
          <td>{{ index + 1 }}</td>
          <td>{{ item.uname }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.gender }}</td>
          <td>
            <button @click="del(index)">删除</button>
            <button @click="compile(index)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      arr: [
        { uname: '小李', age: 20, gender: '男' },
        { uname: '小芳', age: 22, gender: '女' },
      ],
      uname: '',
      age: '',
      gender: '',
    }
  },
  methods: {
    add() {
      //添加
      if (this.uname && this.age >= 0 && this.age <= 100 && this.gender) {
        if (!this.arr.find((item) => item.flag)) {
          this.arr = [
            ...this.arr,
            { uname: this.uname, age: this.age, gender: this.gender },
          ]
          this.uname = this.age = this.gender = ''
        } else {
          this.arr.find((item) => {
            if (item.flag) {
              item.uname = this.uname
              item.age = this.age
              item.gender = this.gender
              // delete item.flag
              item.flag = false
            }
          })
          this.uname = this.age = this.gender = ''
        }
      } else {
        alert('请填入正确的格式以添加成员')
      }
    },
    //修改
    compile(index) {
      this.uname = this.arr[index].uname
      this.age = this.arr[index].age
      this.gender = this.arr[index].gender
      this.arr[index].flag = true
    },
    //删除
    del(index) {
      this.arr.splice(index, 1)
    },
  },
}
</script>
